Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5221328 | Tetrahedron | 2012 | 6 Pages |
A chemosensor based on phenolic Schiff base bearing a pyrene group (sensor 1) has been synthesized and demonstrated. Sensor 1 showed a highly selective colorimetric response to fluoride anions based on a deprotonation process and fluorescent response to cyanide anions (606-fold fluorescence quantum yield enhancement) based on a cyclization process. Moreover, the cyclization of phenolic Schiff bases induced by cyanide could be used as a new way to synthesize 2-substituted benzoxazoles.
Graphical abstractA chemosensor based on phenolic Schiff base bearing a pyrene group has been synthesized and demonstrated, which shows highly selective colorimetric and fluorescent sensing abilities for fluoride and cyanide anions via deprotonation and cyclization process, respectively.Figure optionsDownload full-size imageDownload as PowerPoint slide